542
Saettler, L. Paul
A history of instructional teachnology
New York
McGraw-Hill
1968
xv, 399p.: ill
Bibliography: p. 371-384
R
Philosophy ، Education
، Teaching aids and devices
، Audio-visual education
LB
885
.
S15
AU
TI
TI Instructional teachnology
CL.هگمشد
